POPOSOAP Pond Filter with Pump Fountain Kits, 660GPH Pond Filter with 40W Pond Pump & Fountain Kit, Koi Pond Filters for Outdoor Ponds Clean, Clear, and Add Water Features(Corded Electric)

I only used something similar to this, no UV… POPOSOAP Pond Filter with Pump Fountain Kits, 660GPH Pond Filter with 40W Pond Pump & Fountain Kit, Koi Pond Filters for Outdoor Ponds Clean, Clear, and Add Water Features(Corded Electric) https://a.co/d/02D4pHb3. But it was also in partial shade.